A post shared by Max the Cat and Gracie (@cool_cat_max_and_gracie) on Nov 29, 2017 at 6:22pm PST

The library put up a wanted-type poster asking patrons, "Please do not let in the cat."

The Star Tribune reports that the conundrum has caused a stir on Twitter and Reddit, where people have been posting Max-inspired artwork. Someone even made a library card for Max, who has been grounded by his owner over his naughty behavior.